Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A relic of World War I that now exist as a piece of public art.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

The Hungarian biochemist whose research helped develop mRNA-based vaccines for Covid-19.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A stone woman in a stylized dress honors a courageous politician.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The true meaning behind this sculpture remains unknown.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A 13th-century convent where St. Margaret of Hungary spent her teenage years.

An ornate private entrance to the Vienna subway built specifically for the emperor.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

These relics of the city's past now exist as a prominent modern feature.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Baroque celebration of the end of the Great Plague of Vienna.

Legends surround an ancient tree trunk riddled with nails for good luck.

Handsomely crafted representations of our round planet.

Museum devoted to the artificial language of Esperanto.

Designed as a reminder of one of the darkest moments in Austrian history.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Dine amidst exotic plants at this former royal greenhouse.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.