One of the largest mines in Bulgaria is now home to a vast museum more than 100 feet underground.

Sofia's legislative center is continuously reinventing itself.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

A striking symbol of the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

An abandoned saucer-shaped monument in the Bulgarian mountains.

A refurbished locomotive from a bygone era in the middle of the Jordanian desert.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Singapore's oldest Hindu temple.

Little India's hidden gem of kindness and good food.

A former reservoir that was only recently discovered after more than 60 years of disuse.

This Singaporean food-court stall was home to the world's cheapest Michelin-starred meal.

A meow-velous tribute to a beloved street cat, made famous on the internet.

Housed in an old British jail, this spot serves up Georgian, Russian, and Ukrainian specialities with a side of Turkish history.

One of the newest mosques in a city filled with thousands.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

A tiny park in the middle of some big power politics.