We have at least 4 WHS, including Wrangel.
We could simply accept that the 0° and 180° lines cross the core areas, relying on the map rather than offering a textual explanation.

Agreed, and I didn't find others than Wrangel being crossed by the antimeridian, although some come close.

(And while the chain of Hawaiian volcanoes tectonically moves west-northwest, the most western parts, like Kure Atoll, will probably have disappeared into the ocean before it ever reaches the antimeridian.)

I have more new Kraków connections in the pipeline:

Connection: Festivals

Kraków – The Jewish Culture Festival, "an annual cultural event organized since 1988 in the once Jewish district of Kazimierz (...) It is one of Poland's major annual cultural events and one of the biggest festivals of Jewish culture in the world." (Wikipedia)

Connection: Franciscan Order

Kraków – Church of St. Casimir the Prince, Basilica of St. Francis of Assisi (Wikipedia)

Connection: Fusion

Kraków – "The Historic Centre of Kraków (...) is one of the most outstanding examples of European urban planning, characterised by the harmonious development and accumulation of features representing all architectural styles from the early Romanesque to the Modernist periods." – "(...) the multiple styles and cultures evident in Kraków and Kazimierz demonstrate the diversity of influences which had an impact on Kraków's development as an urban complex, and which reflect the roles played in this process by different nations." (OUV)

Connection: Goethe

Kraków – Goethe stayed at Ludwikowski House in Slawkowska Street. "A historic townhouse built in 1776. Originally, the building housed an inn, notable guests included Johann Wolfgang von Goethe". (Wikipedia)

To be continued...

I am not sure this is really "Fusion". The connection is tricky, but we seem to have included mostly sites where fusion or mixing or blending is highlighted. This in Krakow seems more like diversity to me.

jonathanfr, JanWillem
If you want to propose the Meridians as a new connection, please write it up like this example:
https://forum.worldheritagesite.org/index.php?action=vthread&forum=5&topic=2473#msg38841

I can't make much sense of it now.

OK, I'll take a closer look at that, but not for at least two weeks, I'm leaving tomorrow for a trip to the Arab Gulf states.

Enjoy your trip, Jonathanfr! I will try to make some sense of it.

Definition:
WHS with their core zone (or exact location) on one of two prime meridians: the International Prime Meridian, or Greenwich meridian, at 0[sup]o[/sup] longitude and the anti-meridian at 180[sup]o[/sup] longitude. See in comparison the connection for WHS located on the Equator.

While the definition for the Equator at 0[sup]o[/sup] latitude sort of follows naturally once a 'top' and 'bottom' (north pole and south pole) of a sphere are defined, defining where is 0[sup]o[/sup] longitude relies on international agreements. Before agreement was reached on the Greenwich meridian, many countries used their own prime meridian. The definition of the Greenwich meridian as a prime meridian was first established by Sir George Airy in 1851. In October of 1883, at the invitation of the President of the U.S.A., 41 delegates from 25 nations met in Washington, D.C for the International Meridian Conference. This inter-governmental conference selected the meridian passing through Greenwich as the world standard prime meridian. However, France abstained from the vote, and French maps continued to use the Paris meridian for several decades. (wiki)

Maritime Greenwich: The name is almost self-explaining. However, the WHS has in its core zone the Royal Observatory of Greenwich, that served as the benchmark for defining the prime meridian and crosses the meridian at about 51[sup]o[/sup]28'40".

Loire Valley: The WHS stretches from Sully-sur-Loire (~2[sup]o[/sup]21'E) to Chalonnes (~0[sup]o[/sup]45' W). The Greenwich meridian crosses the Loire somewhat east of Saumur.

Pyrénees-Mont Perdu: The Greenwich meridian crosses the Pyrenees at an elevation of over 2,000 meters in the Monte Perdido WHS on the border of France and Spain. It just misses its highest peaks.

Wrangel Island: The anti-meridian crosses the main island of the Wrangel Island Reserve. The international date lane at this high latitude is displaced eastwards to keep the islands on the same day as mainland Russia.

(Sorry, I couldn't find how to get the o in superscript for the degrees :) )

Very nice, JanWillem
I will find a (°)

For the Prime Meridians connection, does this one count too? Or is it a case of "nearly, but not near enough"?

Routes of Santiago de Compostela in France – Église Notre-Dame-du-Bon-Port de Gavarnie: 42° 43' 57" N, 0° 00' 38" O (Wikipedia)

And I will add yet more new Kraków connections!

Connection: Gothic Revival

Kraków – "The Cloth-hall, a 14th century structure, with a sculptured façade from the Renaissance period, and a neo-Gothic colonnade encircling the building, which was added in the 19th century (...)" (Nomination file, p. 7) - The Collegium Novum, "the Neo-Gothic main building of the Jagiellonian University" (Wikipedia)

Connection: Greek Orthodox churches outside Greece

Kraków – "11 Wislna Street - Greek Catholic orthodox Church of the Exaltation of the Holy Cross." (Wikipedia)

Connection: Holy Lance

Kraków – "Otto III commissioned two replicas of the lance [in Vienna]. (...) [One of them was] presented to Duke of Poland, Boleslaw I, at the Congress of Gniezno in 1000. The Polish lance is currently displayed in the John Paul II Cathedral Museum in Kraków." (Wikipedia)

Connection: Jesuit Order

Kraków – Saints Peter and Paul Church: "It was funded by the King Sigismund III Vasa (Zygmunt III) for the Jesuit order. (...) In its niches are statues of Jesuit saints: Ignatius of Loyola, Francis Xavier, Aloysius Gonzaga, and Stanislaw Kostka made by Dawid Heel. Above the main portal lies the emblem of the order of Jesuits with Saints Sigismund of Burgundy and Ladislaus I of Hungary." (Wikipedia)

To be continued...

First, since Jonathanfr originally came up with the idea for the connection, I think he should (at least also) get the credits for 'proposed by'.

As for distance, I'm leaning toward 'you're either on or not on the meridian'. The Equator may be a better example: you will not be invited to King Neptune's court if you only approach the equator up to 500m or so, but don't cross it, will you? :)
But I'm also fine with a small maximum distance, for example 0.01 decimal degree (relative) or 1 kilometer (absolute). Let's wait and see what Jonathanfr thinks.

To compensate for that we've just taken away a connection from the Amsterdam Canal Ring, it can be connected to Clock Tower. Most prominent are the tower of the Westerkerk, well within the core zone, and the Munttoren, right at the edge of the core zone. Both towers are early 17th century.

Let's crack on with Kraków! :-D

Connection: Leaning Tower

Kraków – The Town Hall Tower "stands 70 metres tall and leans just 55 centimetres, the result of a storm in 1703." (Wikipedia)

Connection: Lenin

Kraków – "7 Swietego Krzyza is a tenement house (...) in Kraków in the District I Old Town. (...) In this building, on March 21, 1914, Vladimir Lenin delivered a lecture to students." (Wikipedia)

Connection: Libraries

Kraków – Czartoryski Library: "The collection of the Princes Czartoryski Library consists of over 245,000 literary monuments dating from the 10th to the 20th century. The library holds a diverse collection of rare manuscripts, incunabula, musicological works, calendars, maps, atlases, herbals, books, periodicals, and ephemera." (Wikipedia)

Connection: Loggia

Kraków – Bishop's Palace: "The palace is a well-preserved example of 19th-century architecture, with elements of Polish Renaissance and Baroque decorations, including an arcaded loggia in the courtyard, added by architect Gabriel Slonski around 1567." (Wikipedia)

To be continued...

Hi,

Can I suggest the following additions to the connection "WHS within walking distance" : 

Vatican City+Rome+Via Appia : "Vatican City (1984) - Rome (1980) - Via Appia (2024) *The Via Appia in Rome, from the 1st to the 13th mile*"

Primeval Beech Forests : "Brussels. Location : Sonian Forest - Grippensdelle A et B. WHS within walking distance : Grand Place, Major Town Houses, Palais Stoclet"

Vienna+Schönbrunn+Danube Limes : "Vienna - Schönbrunn - Danube Limes *5 locations in the historical center"

And some more to add ("WHS within walking distance")

Central University City Campus of the UNAM : "Mexico City. WHS within walking distance : Luis Barragán House and Studio, Historic Centre of Mexico City and Camino Real (which includes the Historic Centre)"

Kremlin and Red Square : "Moscow. WHS within walking distance : Novodevichy Convent, Church of the Ascension (Kolomenskoye)"

Novodevichy Convent : 
"Moscow. WHS within walking distance : Kremlin and Red Square, Church of the Ascension (Kolomenskoye)"

Church of the Ascension (Kolomenskoye) : "Moscow. WHS within walking distance : Kremlin and Red Square, Novodevichy Convent"