Some notable holidays from various cultures and religions include: Christian holidays:

• Christmas (Nativity of Jesus Christ)
• Easter (Resurrection of Jesus)
• Pentecost
• All Saints' Day
• Palm Sunday
• Good Friday

Jewish holidays:

• Hanukkah (Festival of Lights)
• Passover (Pesach)
• Rosh Hashanah (Jewish New Year)
• Yom Kippur (Day of Atonement)
• Purim
• Sukkot

Islamic holidays:

• Eid al-Fitr (end of Ramadan fasting)
• Eid al-Adha (Feast of Sacrifice)
• Ramadan (month of fasting)
• Islamic New Year (Raʼs as-Sanah al-Hijrīyah)

Hindu holidays:

• Diwali (Festival of Lights)
• Holi (Festival of Colors)
• Navratri
• Ganesh Chaturthi
• Maha Shivratri

Buddhist holidays:

• Vesak (Buddha Jayanti)
• Magha Puja
• Asalha Puja

Other cultural holidays:

• Dia de los Muertos (Day of the Dead, Latin America)
• Chinese New Year
• Valentine's Day
• New Year's Day (widely celebrated internationally)

Fun and unusual holidays:

• Talk Like a Pirate Day
• World Lazy Day

These holidays reflect a mix of religious, cultural, seasonal, and secular observances celebrated around the world