We usually think "expensive" means something costing a few thousand dollars. But there are things in this world with price tags that defy imagination. After learning about the most expensive things in the world, your sense of price will never be the same.

1. Most Expensive Painting — Salvator Mundi ($450.3M)

Leonardo da Vinci's "Salvator Mundi" sold at Christie's in 2017 for $450.3 million. The buyer is believed to be Saudi Crown Prince Mohammed bin Salman.

For that money? You could buy about 200 apartments in Seoul's Gangnam district.

2. Most Expensive Car — Bugatti La Voiture Noire ($18.7M)

The Bugatti La Voiture Noire debuted at the 2019 Geneva Motor Show at $18.7 million before tax. Only one was ever made.

That's enough to buy roughly 500 Tesla Model 3s.

3. Most Expensive Home — Buckingham Palace (Est. $4.9B)

Not officially for sale, but Buckingham Palace is estimated at about $4.9 billion. It has 775 rooms, 78 bathrooms, and sits on 40 acres.

4. Most Expensive Food Ingredients

Saffron — ~$5,000–$10,000/kg. Called "Red Gold." It takes 150,000–200,000 flowers to produce just 1 kg.

White Truffle — ~$2,000–$6,000/kg. In 2014, a 1.89kg white truffle sold at auction for $61,250.

5–7. Even More Mind-Blowing

5. Most Expensive Watch — Graff Diamonds Hallucination: $55 million. Covered in 110 carats of diamonds.

6. Most Expensive Perfume — Clive Christian No.1 Imperial Majesty: $215,000 for 500ml with a 5-carat diamond on the bottle.

7. Most Expensive Sneakers — Nike Air Yeezy 1 Prototype (Kanye West): sold at Sotheby's in 2021 for $1.8 million.

8–10. Earth's Priciest Substances

8. Diamond — Gem-quality: ~$55 million/kg.

9. Californium-252 — Synthetic radioactive element. ~$27 million/gram. Used in cancer treatment and nuclear detection.

10. Antimatter — ~$62.5 trillion/gram(!). The most expensive substance humanity has ever produced — more than the entire world's GDP. Hard to believe something that costly exists, right?

That amount of money could buy about 10 trillion Big Macs — enough for every person on Earth to eat 3 per day for 450 years.

Price sense shaken? Try guessing everyday product prices to recalibrate!